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https://github.com/ClickHouse/ClickHouse.git
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319 lines
10 KiB
C++
319 lines
10 KiB
C++
#include <iomanip>
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#include <common/logger_useful.h>
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#include <DB/Common/SipHash.h>
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#include <DB/IO/ReadHelpers.h>
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#include <DB/Interpreters/Quota.h>
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#include <set>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int QUOTA_EXPIRED;
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extern const int QUOTA_DOESNT_ALLOW_KEYS;
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extern const int UNKNOWN_QUOTA;
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}
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void QuotaValues::initFromConfig(const String & config_elem, Poco::Util::AbstractConfiguration & config)
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{
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queries = parse<UInt64>(config.getString(config_elem + ".queries", "0"));
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errors = parse<UInt64>(config.getString(config_elem + ".errors", "0"));
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result_rows = parse<UInt64>(config.getString(config_elem + ".result_rows", "0"));
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result_bytes = parse<UInt64>(config.getString(config_elem + ".result_bytes", "0"));
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read_rows = parse<UInt64>(config.getString(config_elem + ".read_rows", "0"));
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read_bytes = parse<UInt64>(config.getString(config_elem + ".read_bytes", "0"));
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execution_time = Poco::Timespan(config.getInt(config_elem + ".execution_time", 0), 0);
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}
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void QuotaForInterval::initFromConfig(const String & config_elem, time_t duration_, time_t offset_, Poco::Util::AbstractConfiguration & config)
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{
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rounded_time = 0;
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duration = duration_;
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offset = offset_;
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max.initFromConfig(config_elem, config);
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}
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void QuotaForInterval::checkExceeded(time_t current_time, const String & quota_name)
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{
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updateTime(current_time);
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check(max.queries, used.queries, current_time, quota_name, "Queries");
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check(max.errors, used.errors, current_time, quota_name, "Errors");
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check(max.result_rows, used.result_rows, current_time, quota_name, "Total result rows");
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check(max.result_bytes, used.result_bytes, current_time, quota_name, "Total result bytes");
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check(max.read_rows, used.read_rows, current_time, quota_name, "Total rows read");
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check(max.read_bytes, used.read_bytes, current_time, quota_name, "Total bytes read");
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check(max.execution_time.totalSeconds(), used.execution_time.totalSeconds(), current_time, quota_name, "Total execution time");
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}
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String QuotaForInterval::toString() const
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{
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std::stringstream res;
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res << std::fixed << std::setprecision(3)
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<< "Interval: " << LocalDateTime(rounded_time) << " - " << LocalDateTime(rounded_time + duration) << ".\n"
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<< "Queries: " << used.queries << ".\n"
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<< "Errors: " << used.errors << ".\n"
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<< "Result rows: " << used.result_rows << ".\n"
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<< "Result bytes: " << used.result_bytes << ".\n"
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<< "Read rows: " << used.read_rows << ".\n"
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<< "Read bytes: " << used.read_bytes << ".\n"
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<< "Execution time: " << used.execution_time.totalMilliseconds() / 1000.0 << " sec.\n";
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return res.str();
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}
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void QuotaForInterval::addQuery(time_t current_time, const String & quota_name)
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{
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__sync_fetch_and_add(&used.queries, 1);
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}
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void QuotaForInterval::addError(time_t current_time, const String & quota_name) noexcept
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{
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__sync_fetch_and_add(&used.errors, 1);
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}
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void QuotaForInterval::checkAndAddResultRowsBytes(time_t current_time, const String & quota_name, size_t rows, size_t bytes)
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{
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__sync_fetch_and_add(&used.result_rows, rows);
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__sync_fetch_and_add(&used.result_bytes, bytes);
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checkExceeded(current_time, quota_name);
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}
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void QuotaForInterval::checkAndAddReadRowsBytes(time_t current_time, const String & quota_name, size_t rows, size_t bytes)
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{
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__sync_fetch_and_add(&used.read_rows, rows);
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__sync_fetch_and_add(&used.read_bytes, bytes);
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checkExceeded(current_time, quota_name);
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}
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void QuotaForInterval::checkAndAddExecutionTime(time_t current_time, const String & quota_name, Poco::Timespan amount)
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{
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/// Используется информация о внутреннем представлении Poco::Timespan.
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__sync_fetch_and_add(reinterpret_cast<Int64 *>(&used.execution_time), amount.totalMicroseconds());
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checkExceeded(current_time, quota_name);
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}
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void QuotaForInterval::updateTime(time_t current_time)
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{
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if (current_time >= rounded_time + static_cast<int>(duration))
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{
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rounded_time = (current_time - offset) / duration * duration + offset;
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used.clear();
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}
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}
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void QuotaForInterval::check(size_t max_amount, size_t used_amount, time_t current_time, const String & quota_name, const char * resource_name)
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{
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if (max_amount && used_amount > max_amount)
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{
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std::stringstream message;
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message << "Quota '" << quota_name << "' for ";
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if (duration == 3600)
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message << "1 hour";
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else if (duration == 60)
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message << "1 minute";
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else if (duration % 3600 == 0)
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message << (duration / 3600) << " hours";
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else if (duration % 60 == 0)
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message << (duration / 60) << " minutes";
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else
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message << duration << " seconds";
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message << " has been exceeded. "
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<< resource_name << ": " << used_amount << ", max: " << max_amount << ". "
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<< "Interval will end at " << LocalDateTime(rounded_time + duration) << ".";
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throw Exception(message.str(), ErrorCodes::QUOTA_EXPIRED);
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}
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}
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void QuotaForIntervals::initFromConfig(const String & config_elem, Poco::Util::AbstractConfiguration & config, std::mt19937 & rng)
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{
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Poco::Util::AbstractConfiguration::Keys config_keys;
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config.keys(config_elem, config_keys);
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for (Poco::Util::AbstractConfiguration::Keys::const_iterator it = config_keys.begin(); it != config_keys.end(); ++it)
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{
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if (0 != it->compare(0, strlen("interval"), "interval"))
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continue;
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String interval_config_elem = config_elem + "." + *it;
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time_t duration = config.getInt(interval_config_elem + ".duration");
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time_t offset = 0;
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bool randomize = config.getBool(interval_config_elem + ".randomize", false);
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if (randomize)
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offset = std::uniform_int_distribution<decltype(duration)>(0, duration - 1)(rng);
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cont[duration].initFromConfig(interval_config_elem, duration, offset, config);
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}
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}
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void QuotaForIntervals::setMax(const QuotaForIntervals & quota)
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{
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for (Container::iterator it = cont.begin(); it != cont.end();)
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{
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if (quota.cont.count(it->first))
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++it;
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else
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cont.erase(it++);
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}
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for (auto & x : quota.cont)
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{
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if (!cont.count(x.first))
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cont[x.first] = x.second;
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else
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cont[x.first].max = x.second.max;
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}
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}
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void QuotaForIntervals::checkExceeded(time_t current_time)
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{
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for (Container::reverse_iterator it = cont.rbegin(); it != cont.rend(); ++it)
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it->second.checkExceeded(current_time, name);
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}
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void QuotaForIntervals::addQuery(time_t current_time)
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{
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for (Container::reverse_iterator it = cont.rbegin(); it != cont.rend(); ++it)
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it->second.addQuery(current_time, name);
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}
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void QuotaForIntervals::addError(time_t current_time) noexcept
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{
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for (Container::reverse_iterator it = cont.rbegin(); it != cont.rend(); ++it)
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it->second.addError(current_time, name);
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}
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void QuotaForIntervals::checkAndAddResultRowsBytes(time_t current_time, size_t rows, size_t bytes)
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{
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for (Container::reverse_iterator it = cont.rbegin(); it != cont.rend(); ++it)
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it->second.checkAndAddResultRowsBytes(current_time, name, rows, bytes);
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}
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void QuotaForIntervals::checkAndAddReadRowsBytes(time_t current_time, size_t rows, size_t bytes)
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{
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for (Container::reverse_iterator it = cont.rbegin(); it != cont.rend(); ++it)
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it->second.checkAndAddReadRowsBytes(current_time, name, rows, bytes);
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}
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void QuotaForIntervals::checkAndAddExecutionTime(time_t current_time, Poco::Timespan amount)
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{
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for (Container::reverse_iterator it = cont.rbegin(); it != cont.rend(); ++it)
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it->second.checkAndAddExecutionTime(current_time, name, amount);
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}
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String QuotaForIntervals::toString() const
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{
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std::stringstream res;
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for (Container::const_reverse_iterator it = cont.rbegin(); it != cont.rend(); ++it)
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res << std::endl << it->second.toString();
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return res.str();
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}
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void Quota::loadFromConfig(const String & config_elem, const String & name_, Poco::Util::AbstractConfiguration & config, std::mt19937 & rng)
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{
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name = name_;
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bool new_keyed_by_ip = config.has(config_elem + ".keyed_by_ip");
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bool new_is_keyed = new_keyed_by_ip || config.has(config_elem + ".keyed");
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if (new_is_keyed != is_keyed || new_keyed_by_ip != keyed_by_ip)
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{
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keyed_by_ip = new_keyed_by_ip;
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is_keyed = new_is_keyed;
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/// Смысл ключей поменялся. Выбросим накопленные значения.
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quota_for_keys.clear();
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}
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QuotaForIntervals new_max(name);
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new_max.initFromConfig(config_elem, config, rng);
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if (!(new_max == max))
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{
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max = new_max;
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for (auto & quota : quota_for_keys)
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{
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quota.second->setMax(max);
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}
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}
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}
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QuotaForIntervalsPtr Quota::get(const String & quota_key, const String & user_name, const Poco::Net::IPAddress & ip)
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{
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if (!quota_key.empty() && (!is_keyed || keyed_by_ip))
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throw Exception("Quota " + name + " doesn't allow client supplied keys.", ErrorCodes::QUOTA_DOESNT_ALLOW_KEYS);
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/** Квота считается отдельно:
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* - для каждого IP-адреса, если keyed_by_ip;
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* - иначе для каждого quota_key, если он есть;
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* - иначе для каждого пользователя.
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*/
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UInt64 quota_key_hashed = sipHash64(
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keyed_by_ip
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? ip.toString()
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: (!quota_key.empty()
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? quota_key
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: user_name));
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std::lock_guard<std::mutex> lock(mutex);
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Container::iterator it = quota_for_keys.find(quota_key_hashed);
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if (quota_for_keys.end() == it)
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{
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it = quota_for_keys.insert(std::make_pair(quota_key_hashed, std::make_shared<QuotaForIntervals>(max))).first;
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}
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return it->second;
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}
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void Quotas::loadFromConfig(Poco::Util::AbstractConfiguration & config)
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{
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std::mt19937 rng;
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Poco::Util::AbstractConfiguration::Keys config_keys;
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config.keys("quotas", config_keys);
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/// Удалим ключи, которых больше нет в кофиге.
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std::set<std::string> keys_set(config_keys.begin(), config_keys.end());
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for (Container::iterator it = cont.begin(); it != cont.end();)
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{
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if (keys_set.count(it->first))
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++it;
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else
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cont.erase(it++);
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}
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for (Poco::Util::AbstractConfiguration::Keys::const_iterator it = config_keys.begin(); it != config_keys.end(); ++it)
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{
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if (!cont[*it])
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cont[*it].reset(new Quota());
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cont[*it]->loadFromConfig("quotas." + *it, *it, config, rng);
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}
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}
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QuotaForIntervalsPtr Quotas::get(const String & name, const String & quota_key, const String & user_name, const Poco::Net::IPAddress & ip)
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{
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Container::iterator it = cont.find(name);
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if (cont.end() == it)
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throw Exception("Unknown quota " + name, ErrorCodes::UNKNOWN_QUOTA);
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return it->second->get(quota_key, user_name, ip);
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}
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}
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